CN217445132U - Waterproof structure of in-wheel motor - Google Patents
Waterproof structure of in-wheel motor Download PDFInfo
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- CN217445132U CN217445132U CN202220841388.8U CN202220841388U CN217445132U CN 217445132 U CN217445132 U CN 217445132U CN 202220841388 U CN202220841388 U CN 202220841388U CN 217445132 U CN217445132 U CN 217445132U
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- end cover
- wire
- wheel motor
- outlet
- waterproof structure
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Abstract
The utility model discloses an in-wheel motor's waterproof construction, it relates to the in-wheel motor field. The technical scheme is characterized by comprising a left half shaft, a right half shaft, a hub shell, a hub end cover and a wire outlet end cover; the outer end face of the wire outlet end cover is provided with an axial protruding portion, the right half shaft comprises an end cover arranged on the axial protruding portion, and the outer end face of the end cover is provided with a shaft section; the hub end cover is supported on the end cover in a rolling way; an outlet wire sheath is embedded on the outer end face of the axial protruding portion, a wire trough communicated with the outlet wire sheath is arranged on the outlet wire end cover, and a through hole communicated with the outlet wire sheath is formed in the end cover. The utility model discloses not only water-proof effects is good, and the reliability is high, can accomplish through assembly process moreover, can simplify production technology to improve production efficiency.
Description
Technical Field
The utility model relates to an in-wheel motor field, more specifically says that it relates to an in-wheel motor's waterproof construction.
Background
In order to meet the waterproof requirement of the existing hub motor, framework sealing rings are generally adopted at two ends, a glue injection process is adopted at a shaft outlet end, and glue is applied to a threaded hole, a rivet hole and the like on the surface of the motor at an installation gap after the installation is finished.
However, the problem that the framework sealing ring cannot be installed due to the limitation of the axial space of the motor exists, and only the waterproof bearing can be adopted, so that the waterproof effect is influenced. At installation gap department rubber coating, perhaps at axle leading-out terminal injecting glue, make the production processes of motor complicated on the one hand, influence production efficiency, the condition of infiltration appears easily in rubber coating department or injecting glue department after long-time the use of on the other hand motor, and then influences the life of water-proof effects and motor.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, the utility model aims to provide an in-wheel motor's waterproof construction, it is not only water-proof effects good, and the reliability is high, can accomplish through assembly process moreover, can simplify production technology to improve production efficiency, can reduce the restriction in axial space simultaneously.
In order to achieve the above purpose, the utility model provides a following technical scheme:
a waterproof structure of a hub motor comprises a left half shaft, a right half shaft, a hub shell, a hub end cover and an outlet end cover;
the outer end face of the wire outlet end cover is provided with an axial protruding portion, the right half shaft comprises an end cover arranged on the axial protruding portion, and the outer end face of the end cover is provided with a shaft section;
the hub end cover is supported on the end cover in a rolling way;
an outlet wire sheath is embedded on the outer end face of the axial protruding portion, a wire trough communicated with the outlet wire sheath is arranged on the outlet wire end cover, and a through hole communicated with the outlet wire sheath is formed in the end cover.
Furthermore, the end face of the outgoing line sheath is provided with an axial extension section embedded in the through hole.
Further, the outer side wall of the axial extension section is provided with a sealing clamping groove matched with the end shield.
Furthermore, a first wire feeding hole and a second wire feeding hole which are coaxially communicated are respectively arranged in the wire outlet sheath and the axial extension section, and the inner diameter of the second wire feeding hole is smaller than that of the first wire feeding hole.
Furthermore, a sealing gasket is arranged between the axial protruding part and the end cover, and a yielding hole communicated with the outgoing line sheath is formed in the sealing gasket.
Furthermore, a limiting groove matched with the outgoing line sheath is formed in the outer end face of the axial protruding portion, and a radial limiting structure is arranged between the limiting groove and the outgoing line sheath.
Furthermore, an end cover bearing and a thin type skeleton sealing ring which are matched with the end cover are respectively arranged in the hub end cover, and the thin type skeleton sealing ring is positioned on the axial outer side of the end cover bearing.
Furthermore, the outer side wall of the end cover is provided with an annular edge which is positioned on the inner side in the axial direction of the end cover bearing, and a rubber sealing ring is arranged between the end cover bearing and the annular edge.
Furthermore, a supporting seat fixedly connected with the hub shell is supported on the left half shaft in a rolling manner, and a fastening hole matched with the supporting seat is formed in the hub shell;
and a sealing patch for closing the fastening hole is arranged on the outer end face of the hub shell.
Furthermore, the outer end face of the hub shell is provided with a sinking groove matched with the sealing patch.
To sum up, the utility model discloses following beneficial effect has:
1. the outgoing line sheath is adopted to seal the lead, so that the waterproof effect is good, the reliability is high, the assembly process can be completed, the production process can be simplified, and the production efficiency can be improved;
2. the sealing gasket is extruded and extended by the fastening pressure when the end cover is connected with the axial convex part, and the gap is filled, so that the sealing effect can be improved;
3. the thin framework sealing ring is adopted, so that the axial size can be optimized, and the sealing effect is improved;
4. the sealing patch is adopted to realize the sealing of the fastening hole, so that the sealing effect is good, the durability and the reliability are realized, the assembly is convenient, and the appearance is attractive.
Drawings
Fig. 1 is a first schematic structural view of a waterproof structure of an in-wheel motor according to an embodiment;
fig. 2 is a schematic view of an overall structure of a waterproof structure of an in-wheel motor according to an embodiment;
fig. 3 is a sectional view showing a waterproof structure of an in-wheel motor according to an embodiment;
FIG. 4 is an exploded schematic view of the outlet end cap, the outlet sheath, the gasket and the right half shaft in the embodiment;
fig. 5 is a schematic structural diagram of the outgoing line sheath in the embodiment.
In the figure: 11. a hub shell; 12. a hub end cap; 13. a fastening hole; 14. sinking a groove; 21. a left half shaft; 22. a supporting seat; 3. sealing the patch; 4. a lead wire; 5. an outlet end cover; 51. an axial projection; 52. a limiting groove; 53. a wiring groove; 6. a right half shaft; 61. an end shield; 62. a shaft section; 63. encircling; 64. a through hole; 7. a gasket; 71. a hole for abdication; 8. a wire outlet sheath; 811. a first wiring hole; 812. a second wiring hole; 82. an axially extending section; 821. sealing the clamping groove; 91. an end cap bearing; 92. a thin framework seal ring; 93. a rubber seal ring.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.
The embodiment is as follows:
a waterproof structure of a hub motor refers to fig. 1 to 5 and comprises a left half shaft 21, a right half shaft 6, a hub shell 11, a hub end cover 12 and an outlet end cover 5, wherein the hub shell 11 is fixedly connected with the hub end cover 12, and the outlet end cover 5 is positioned on the inner side of the hub end cover 12; an axial bulge 51 is arranged on the outer end face of the outlet end cover 5, the right half shaft 6 comprises an end cover 61 arranged on the axial bulge 51, and a shaft section 62 is arranged on the outer end face of the end cover 61; in the embodiment, the end shield 61 is fixedly connected with the axial bulge 51 through bolts; the hub end cover 12 is supported on the end cover 61 in a rolling way; in the embodiment, an outgoing line sheath 8 is embedded on the outer end face of the axial protruding part 51, a wiring groove 53 communicated with the outgoing line sheath 8 is arranged on the outgoing line end cover 5, and a through hole 64 communicated with the outgoing line sheath 8 is arranged on the end cover 61; in the embodiment, the outgoing line sheath 8 is adopted to seal the lead 4, so that the waterproof effect is good, the reliability is high, the assembly process can be completed, the production process can be simplified, and the production efficiency can be improved; specifically, in the present embodiment, the wire trough 53 extends from the outer end surface of the wire outlet end cover 5 to penetrate through the end surface of the wire outlet end cover 5.
Referring to fig. 1 to 5, preferably, the end face of the outgoing line sheath 8 is provided with an axially extending section 82 which is embedded in the through hole 64, so that the sealing effect can be improved; more preferably, the outer side wall of the axial extension section 82 is provided with a sealing groove 821 matched with the end cover 61, so that the sealing effect can be further improved, the connection stability can be improved, and the sealing reliability can be improved; in this embodiment, the outlet sheath 8 and the axial extension section 82 are respectively provided with a first wire hole 811 and a second wire hole 812 which are coaxially communicated, and the inner diameter of the second wire hole 812 is smaller than that of the first wire hole 811; the first wire hole 811 and the second wire hole 812 are matched to form a stepped wire hole, which is beneficial to improving the sealing property between the stepped wire hole and the lead wire 4, and preferably, the lead wire 4 is in interference fit with the first wire hole 811 and the second wire hole 812; specifically, in the present embodiment, the outer end face of the axial protrusion 51 is provided with a limiting groove 52 matched with the outgoing line sheath 8, and a radial limiting structure is arranged between the limiting groove 52 and the outgoing line sheath 8; the radial limiting structure is adopted, so that the stability of the outgoing line sheath 8 is favorably ensured, the outgoing line sheath 8 is prevented from loosening, and the sealing reliability can be improved; specifically, in the present embodiment, the outgoing line sheath 8 includes a circular portion and a rectangular portion, so that the outgoing line sheath 8 is in a special-shaped structure, the limiting groove 52 includes a circular groove and a rectangular groove, and the circular portion and the circular groove cooperate to form a radial limiting structure; of course, in other alternative embodiments, the radial limiting structure may adopt other structural forms, which are not limited herein, and may implement the radial limiting function.
Referring to fig. 3 and 4, preferably, a sealing gasket 7 is arranged between the axial protrusion 51 and the end cover 61, and a yielding hole 71 communicated with the outgoing line sheath 8 is formed in the sealing gasket 7; the sealing gasket 7 is extruded and expanded by the fastening pressure when the end cover 61 is connected with the axial convex part 51, and the gap is filled, so that the sealing effect can be improved; specifically, the gasket 7 in this embodiment is a thin nitrile rubber pad.
Referring to fig. 3 and 4, preferably, in the present embodiment, an end cover bearing 91 and a thin type skeleton sealing ring 92 which are matched with the outer side wall of the end cover 61 are respectively arranged in the hub end cover 12, and the thin type skeleton sealing ring 92 is located at the axial outer side of the end cover bearing 91, so that the axial size can be optimized, and the sealing effect can be improved; preferably, the outer side wall of the end cover 61 is provided with an annular edge 63 located at the axial inner side of the end cover bearing 91, and a rubber sealing ring 93 is arranged between the end cover bearing 91 and the annular edge 63, specifically, the rubber sealing ring 93 is in end face contact with the inner ring of the end cover bearing 91, so that the sealing effect can be further improved.
Referring to fig. 1 to 3, in the present embodiment, a supporting seat 22 fixedly connected to the hub shell 11 is rotatably supported on the left half shaft 21, and the hub shell 11 is provided with a fastening hole 13 engaged with the supporting seat 22; specifically, in the present embodiment, the hub shell 11 and the support seat 22 are fixedly connected by a rivet, and the fastening hole 13 is a riveting hole penetrating through an end surface of the hub shell 11; preferably, the outer end face of the hub shell 11 is provided with a sealing patch 3 closing the fastening hole 13; the fastening hole 13 is sealed by the sealing patch 3, so that the sealing effect is good, the durability and the reliability are realized, the assembly is convenient, and the appearance is attractive; preferably, the outer terminal surface of hub shell 11 is provided with sealed paster 3 complex heavy groove 14, inlays sealed paster 3 in heavy groove 14, not only can improve sealed effect, can improve sealed paster 3's stability moreover, prevents that the side of sealed paster 3 from perk.
Claims (10)
1. A waterproof structure of a hub motor comprises a left half shaft, a right half shaft, a hub shell, a hub end cover and an outlet end cover;
the outer end face of the wire outlet end cover is provided with an axial protruding portion, the right half shaft comprises an end cover arranged on the axial protruding portion, and the outer end face of the end cover is provided with a shaft section;
the hub end cover is supported on the end cover in a rolling way;
the method is characterized in that:
an outlet wire sheath is embedded on the outer end face of the axial protruding portion, a wire trough communicated with the outlet wire sheath is arranged on the outlet wire end cover, and a through hole communicated with the outlet wire sheath is formed in the end cover.
2. The waterproof structure of the in-wheel motor according to claim 1, characterized in that: the end face of the outgoing line sheath is provided with an axial extension section embedded in the through hole.
3. The waterproof structure of the in-wheel motor according to claim 2, characterized in that: and a sealing clamping groove matched with the end shield is arranged on the outer side wall of the axial extension section.
4. The waterproof structure of the in-wheel motor according to claim 2, characterized in that: the wire outlet sheath and the axial extension section are respectively provided with a first wire routing hole and a second wire routing hole which are coaxially communicated, and the inner diameter of the second wire routing hole is smaller than that of the first wire routing hole.
5. The waterproof structure of the in-wheel motor according to claim 1, characterized in that: a sealing gasket is arranged between the axial protruding part and the end shield, and a yielding hole communicated with the outgoing line sheath is formed in the sealing gasket.
6. The waterproof structure of the in-wheel motor according to claim 1, characterized in that: the outer end face of the axial protruding portion is provided with a limiting groove matched with the outgoing line sheath, and a radial limiting structure is arranged between the limiting groove and the outgoing line sheath.
7. The waterproof structure of the in-wheel motor according to claim 1, characterized in that: an end cover bearing and a thin skeleton sealing ring which are matched with the end cover are respectively arranged in the hub end cover, and the thin skeleton sealing ring is positioned on the axial outer side of the end cover bearing.
8. The waterproof structure of the in-wheel motor according to claim 7, characterized in that: the outer side wall of the end cover is provided with an annular edge which is positioned on the inner side in the axial direction of the end cover bearing, and a rubber sealing ring is arranged between the end cover bearing and the annular edge.
9. The waterproof structure of the in-wheel motor according to claim 1, characterized in that: the left half shaft is supported with a supporting seat fixedly connected with the hub shell in a rolling way, and the hub shell is provided with a fastening hole matched with the supporting seat;
and a sealing patch for closing the fastening hole is arranged on the outer end face of the hub shell.
10. The waterproof structure of the in-wheel motor according to claim 9, characterized in that: the outer end face of the hub shell is provided with a sinking groove matched with the sealing patch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220841388.8U CN217445132U (en) | 2022-04-12 | 2022-04-12 | Waterproof structure of in-wheel motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220841388.8U CN217445132U (en) | 2022-04-12 | 2022-04-12 | Waterproof structure of in-wheel motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217445132U true CN217445132U (en) | 2022-09-16 |
Family
ID=83218501
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220841388.8U Active CN217445132U (en) | 2022-04-12 | 2022-04-12 | Waterproof structure of in-wheel motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217445132U (en) |
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2022
- 2022-04-12 CN CN202220841388.8U patent/CN217445132U/en active Active
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